EXPLANATION OF PLATE IV. 



Freshwater Molluscs from Bomba}'. 

 Limnaea acuminata var. nana, nov. 

 Fig. I. — Photograph of type-specimens from Khandalla, X 4 



Crcmnoconchus syhadrensis (Blanford). 



Fig. 2. — Living mollusc crawling on side of glass jar above water 

 showing film of water it carries with it, opening of 

 branchial chamber, etc. : enlarged. 



,, 3. — Animal ( 9 ) removed from shell and with the branchial 

 chamber slit open to show gill [a) and osphradium {b) : 

 enlarged. 



,, 4. — Radular teeth (highly magnified). 



Lamcllidcns marginalis var. cylindrica, H, and T. 



Fig. 5. — Shell from reservoir at Igatpuri provisionally assigned to 

 this variety (nat. size). 



Parrcyssia cylindrica, sp. nov. 



Fig. 6.— Type-series of .shells from the R. Yenna at Medha (nat. 

 size). 



Figs. 7, ya. — Enlarged view of hinge, etc. in the two valves of an 

 adult shell. 



